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1

java.nio.channels.OverlappingFileLockException

locking conflict. In embedded mode the database cannot be opened by more than one user (process
Issue
1

javax.jdo.JDONullIdentityException: The identity must not be null.

#2 reflects a locked database file (due to a failure during close) and not a corrupted database
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1

Multithreading Test and Deadlock

because of higher memory usage (4 x 10,000 x 100 strings x attribute length => many MBs). Thanks. It solved the dead lock. edy_at_ssn
Issue
1

NPE at com.objectdb.jpa.JpaQuery.getResultList

(); } } It seems as a separate issue. Maybe related to pessimistic locking
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1

ObjectDB version 2.1 has been released

the download). Added support of disabling optimistic locking exceptions. Added support of url
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1

Out of memory

" /> <locking version-check="true" />
Forum
1

OutofMemory error with Object DB 2.0

="." max="128mb" /> <locking
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1

Password in Embedded Mode?

Is there a way to setup a database file that will be accessed in embedded mode, such that it is locked with a password.  Thereby making it impossible to use ObjectDB to access the contents of the file without providing the correct password when obtaining a connection.  In my case, I'm interested in
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1

Performance tuning, best practices

" />     <locking version-check="true
Issue
1

Remove an entity which attributes were changed

We use an OSGi environment and we have three OSGi plugins.   In plugin A an entity is loaded and the entity is passed to plugin B. Plugin B changes an attribute on the entity. Plugin C removes the entity from the database. After commit the transaction an exception is caused with optimistic lock